Selective localization of multi-walled carbon nanotubes in bi-component biodegradable polyester blend for rapid electroactive shape memory performance

2016 ◽  
Vol 125 ◽  
pp. 38-46 ◽  
Author(s):  
Xiaodong Qi ◽  
Peng Dong ◽  
Zhenwei Liu ◽  
Tianyu Liu ◽  
Qiang Fu
Keyword(s):  
Carbon Nanotubes ◽  
Shape Memory ◽  
Memory Performance ◽  
Biodegradable Polyester ◽  
Multi Walled Carbon Nanotubes ◽  
Selective Localization ◽  
Walled Carbon Nanotubes

CNT and Graphene Filled Shape Memory Foams by Solid State Foaming

2015 ◽  
Vol 651-653 ◽  
pp. 719-725
Author(s):  
Loredana Santo ◽  
Giovanni Matteo Tedde ◽  
Fabrizio Quadrini ◽  
Ibrahim Mutlay
Keyword(s):  
Carbon Nanotubes ◽  
Transition Temperature ◽  
Solid State ◽  
Shape Memory ◽  
Composite Foams ◽  
Epoxy Foam ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Positive Effect ◽  
Foaming Technology

Epoxy-based shape memory (SM) foams have been produced by solid state foaming. According to this foaming technology, precursors are made by cold compaction of thermosetting powders. Subsequently, precursors foam by heating in an oven. In this study, the SM epoxy powder was mixed with multi-walled carbon nanotubes (MWCNTs) and graphene so as to produce SM composite foams. Two different filling contents were used (0.5 and 1 wt%). In order to study the effect of nano-fillers on SM properties of the epoxy foams, foam compressibility was measured at a temperature higher than the transition temperature of the SM epoxy foam (i.e. the glass transition temperature). Moreover, recovery load was measured after a 50% of memorized strain. Results show the positive effect of the fillers in functional and structural terms.

Sign in / Sign up

Export Citation Format

Share Document